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上篇讲到创立自定义网络，我创立了
mynet网络，并指定了网关和子网地址。在上篇结尾呢，我抛出了一个问题：其它网络下的容器能够间接拜访mynet网络下的容器吗？明天就让咱们一块看下怎么实现容器互联。
其它网络下的容器退出 mynet 网络，实现一个容器两个 ip 地址
网络集群
- 先创立
test-network网络：
docker network create test-network
- 再运行
centos01容器并退出到test-network网络下
docker run -it -P --name centos01 --net test-network centos
centos01容器曾经退出在 test-network 网络下了
centos01退出 mynet 网络
[email protected] ~]# docker network connect mynet centos01查看 mynet 网络
docker network ls
[[email protected] ~]# docker network ls
NETWORK ID NAME DRIVER SCOPE
feafa30d4051 bridge bridge local
e8bf4fced9e2 host host local
0096a971fd2c mynet bridge local # 自定义 bridge 网桥
6263db0933b9 none null local
799426d70aa2 test-network bridge localdocker network inspect 0096
[[email protected] ~]# docker network inspect 0096
[
{
"Name": "mynet",
"Id": "0096a971fd2c66400e53cbae5e53eceedc2f90d5685917e9534640a3535c0ef1",
"Created": "2021-10-04T10:18:09.113847736+08:00",
# ... 省略代码展现
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "192.168.0.0/16",
"Gateway": "192.168.0.1"
}
]
},
# ... 省略代码展现
"Containers": {
"2fac920eebd505794c4a27ef4efdf531d32805e8663bded93a473bd28236bc27": {
"Name": "mynet-centos01",
"EndpointID": "3aff075...",
"MacAddress": "02:42:c0:a8:00:02",
"IPv4Address": "192.168.0.2/16",
"IPv6Address": ""},"3dceda051252b6970fe2156bac7710ba6489a97aac68c49b1c85a2f130d0556f": {"Name":"mynet-tomcat01","EndpointID":"9f52b19...","MacAddress":"02:42:c0:a8:00:03","IPv4Address":"192.168.0.3/16","IPv6Address":""},
"cb1922b95b9316d129b54f3545fad9729092926e10a1d5517f8928db42706151": {
"Name": "centos01",
"EndpointID": "0ba2107...",
"MacAddress": "02:42:c0:a8:00:04",
"IPv4Address": "192.168.0.4/16", # 新退出的 centos01 容器
"IPv6Address": ""
}
},
"Options": {},
"Labels": {}}
]查看 centos01 的容器信息
能够看到 Networks 上面存在 mynet、test-network 两个网络连接信息
一个容器两个 ip 地址
无关代码已省略展现
[[email protected] ~]# docker inspect cb19
[
{
"Id": "cb1922b95b9316d129b54f3545fad9729092926e10a1d5517f8928db42706151",
"Created": "2021-10-03T13:39:00.942877668Z",
"Path": "/bin/bash",
"Args": [],
# ... 省略代码展现
"NetworkSettings": {
# ... 省略代码展现
"Networks": {
# 网络连接 1：mynet
"mynet": {、# ... 省略代码展现
"Gateway": "192.168.0.1",
"IPAddress": "192.168.0.4",
"MacAddress": "02:42:c0:a8:00:04",
},
# 网络连接 2：test-network
"test-network": {
# ... 省略代码展现
"Gateway": "172.18.0.1",
"IPAddress": "172.18.0.3",
"MacAddress": "02:42:ac:12:00:03",
}
}
}
}
]test-network 网卡下的 centos01 拜访 mynet 网卡下的 mynet-centos01、mynet-tomcat01
容器 ip 和容器名都能够连贯
进入 centos01 容器
[[email protected] ~]# docker exec -it cb19 /bin/bashmynet-tomcat01 容器的 IP 是: 192.168.0.3
ping mynet-tomcat01 容器的 IP
[[email protected] /]# ping 192.168.0.3
PING 192.168.0.3 (192.168.0.3) 56(84) bytes of data.
64 bytes from 192.168.0.3: icmp_seq=1 ttl=64 time=0.186 ms
^C
--- 192.168.0.3 ping statistics ---
7 packets transmitted, 7 received, 0% packet loss, time 6000ms
rtt min/avg/max/mdev = 0.090/0.127/0.186/0.029 ms间接 ping 容器名 mynet-centos01 mynet-tomcat01
[[email protected] /]# ping mynet-centos01
PING mynet-centos01 (192.168.0.2) 56(84) bytes of data.
64 bytes from mynet-centos01.mynet (192.168.0.2): icmp_seq=1 ttl=64 time=0.105 ms
^C
--- mynet-centos01 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 0.105/0.116/0.130/0.013 ms
[[email protected] /]# ping mynet-tomcat01
PING mynet-tomcat01 (192.168.0.3) 56(84) bytes of data.
64 bytes from mynet-tomcat01.mynet (192.168.0.3): icmp_seq=1 ttl=64 time=0.085 ms
^C
--- mynet-tomcat01 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 0.085/0.093/0.102/0.012 ms
[[email protected] /]# 论断
其它网络下的容器能够通过退出 docker 网络，来拜访该 docker 网络下的容器，并且既能够通过容器 ip 也能够通过容器名连贯，十分不便。docker0非常弱小
我是 甜点 cc
酷爱前端，也喜爱专研各种跟本职工作关系不大的技术，技术、产品趣味宽泛且浓重，期待着一个守业机会。本号次要致力于分享集体经验总结，心愿能够给一小部分人一些渺小帮忙。
心愿能和大家一起致力营造一个良好的学习气氛，为了集体和家庭、为了我国的互联网物联网技术、数字化转型、数字经济倒退做一点点奉献。数风流人物还看中国、看今朝、看你我。
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